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## Viscosity and Buoyancy

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**Viscosity and Buoyancy**Physical Properties**Viscosity**• A fluids resistance to flow • High Viscosity: the fluid is thick and flows slowly • Low Viscosity: the fluid is think and flows fast**If I poured each of these liquids out, which would have a**high viscosity? How can I prove it?**Buoyancy**• The ability to exert an upward force on an object immersed in it**Buoyancy**• If the buoyant force is greater than or equal to the weight of the water displaced, then the object will float**Buoyancy**Buoyant force is greater than or equal to weight = float Weight is greater than buoyant force = sink**Compressibility**• A measure of how much the volume of matter decreases under pressure • Gases are easily compressible because of the space between the particles • Used in automobile airbags to absorb the energy of an impact